[gcc r16-1419] libfortran: Simplify Makefile logic

https://gcc.gnu.org/g:94e0f29b6b216a85a03b732a90f900b8b0e99c6b commit r16-1419-g94e0f29b6b216a85a03b732a90f900b8b0e99c6b Author: Francois-Xavier Coudert Date: Tue Jun 10 12:37:02 2025 +0200 libfortran: Simplify Makefile logic Simplify the structure of the Makefile, because now we

[gcc r16-1391] libfortran: Add script to regenerate source files

https://gcc.gnu.org/g:d2f82b57c819eea607c909d28f3687316ff17611 commit r16-1391-gd2f82b57c819eea607c909d28f3687316ff17611 Author: Francois-Xavier Coudert Date: Mon Jun 9 17:19:04 2025 +0200 libfortran: Add script to regenerate source files Move the regeneration of libgfortran sourc